498584-33-1Relevant articles and documents
Supramolecular encapsulation of anions in a copper(I) complex
Saravanabharathi,Samuelson
, p. 2300 - 2306 (2007/10/03)
Mixed ligand copper(I) complexes of 1,10-phenanthroline (phen) and 1,2-bis(diphenyl)phosphinoethane (dppe) have been prepared with different counter ions [ClO4- (1), BF4- (2), SO42- (3), NO3- (4)]. Based on the 1H and 31P NMR spectra of these complexes, it is seen that the solution equilibria of the sulfate complex is different from the rest and involves ligand dissociation. Competition experiments show that the nitrate ion is preferred by the cation in solution. Complex 4 has 1H NMR features that are different from those observed in complexes 1 and 2. A Cambridge Structural Database study has been taken up to show the uniqueness of phenanthroline in interacting with anions, especially nitrate ions through a preferential (phen)C2-O(nitrate) interaction.